When fighting an engine-compartment fire, you should fully open the hood before using the extinguisher.
Correct answer: B – False
Turn off the engine as soon as possible, but avoid opening the hood if you can. Direct foam through the louvers or radiator or from underneath the vehicle. Opening the hood is not the recommended first step for reaching the base of an engine-compartment fire.
Source: Indiana Commercial Driver’s License Manual — § 2.21.3, “Fire Fighting”

